Speedy Hopper

Speedy Hopper adds two new hopper blocks. The Fast Hopper moves items every 4 game ticks, twice as quick as a normal hopper, and the Slow Hopper moves items every 16 game ticks, twice as slow. Both can be crafted with a tipped potion, so a player upgrades a hopper by placing it on top of a potion-based recipe. Lingering Potion of Swiftness II turns a normal hopper into a Fast Hopper, Lingering Potion of Slowness IV turns it into a Slow Hopper, and a Thick Lingering Potion upgrades a Speedy Hopper. Going back to a normal hopper is also possible through a separate recipe, and a bottle is consumed each time a crafting step uses one.

The mod is published for Fabric only, for Minecraft 1.19. It is a client and server mod, so both the server and every player need it installed, and the mod adds new blocks that clients see when they craft Speedy Hoppers. Installation needs the Fabric launcher and Fabric API. Speedy Hopper is open source under the CC0 1.0 Universal license and is free to use in modpacks. The author states that Speedy Hoppers are customizable and that the mod works alongside other mods without conflict, except that Sticky Hopper cannot be combined with the Fast Sticky Hopper. The Speedy Hopper page lists the source code and issue tracker as public links.